INFRARED ABSORPTION PAPER FOR COUNTERFEIT PREVENTION

摘要

PURPOSE: A paper for preventing forgery with infrared ray absorption is provided to absorb infrared ray part within UV ray range and to identify genuineness. CONSTITUTION: A paper for preventing forgery with infrared ray absorption contains one or more fine particles selected from fluorescence, UV ray, heat sensitive, pressure sensitive, and organic dye materials. The dye is selected from nickeldithioles, cyanines, diimoniums, aminiums, phthalocyanines, naphthalocyanines, and aminiums.